The dialog appears when you right-click a table or a table column and select Insert > Summary Column from the shortcut menu. It helps you to insert new summary columns into a table. See the dialog.
The followings are details about options of this dialog:
Resources
Lists all the available data resources for the new summary column. Select the resource you want from the list.
OK
Inserts the column with the specifies resource and closes the dialog.
Cancel
Does not retain any changes and closes the dialog.
Help
Displays this help document.
